I just got some new handbags and at sample sale here in NYC and I think all three are pretty mom friendly.
The LARGE DOUBLE GG LOGO TOTE could be used as a day/work bag and possibly even a travel/diaper bag. It's pretty big and has one big interior pocket and two small ones as well. I also have a smaller Gucci bag DOUBLE GG LOGO BROWN TOTE but it's still big enough to fit everything you need. It also has a pocket inside and a pretty large one on the exterior of the bag. Then there's a smaller Prada bag PRADA BLACK TESSUTO BR3291 that may function more as a purse for going out or just when you don't need to carry a lot of stuff the good thing though it's nylon and stains should just wipe right off.
Take a look and let me know what you think!